screenr Very simple, easy-to-use tool for creating screencast videos. You do not need to register in order to use Screenr, but if you want to save your recordings you do need a Twitter account. Uses your Twitter ID to save your recording and publish it to Twitter (you can opt not to publish to Twitter). The recordings you make can also be published to YouTube or you can download your recordings.

Screen Castle Simple web-based screencast creation tool. To use Screen Castle simply visit their website, click the start button and you're recording. You have the option to enable voice recording for your screencasts. Screencasts can be viewed on the or embedded into another website or blog.

Screencast-O-Matic Web-based screencast creation tool, allows you to specify how much of your screen that you want to record. Recording your voice is an available option.

QlipBoard: Create How To Videos Easily